Carbureter.



F. W. DE TRAY.

GARBURETER.

- APPLICATION FILED DEG. so, 1907.

2 SHEETS--SHBET 1.

atfozvwq Patented Apr. 6, 909.

wi/tvwoo a S WM ii.

P. W. DE TRAY.

GABBUBETER. y APPLICATION FILED D110. 30, 1907.

917,264, Patented Apr. 6, 1909.

2 SHEETS-SHEET 2.

FLOYD WM. DE TRAY, OF AURORA, ILLINOIS.

CARBURETER.

Specification of Letters Patent.

' Patented April 6, 1909.

Application filed. December 30, 1907. Serial No. &08,591.

T 0 all whom it may concern:

Be it known that I, FLOYD W. DE TRAY, a citizen of the United States,residing at Aurora, in the county ofKane and State of Illinois, haveinvented a new and useful Carbureter, of which the following is aspecification.

vThe principal object of the present invention is to provide novel,simple and effective means fo'rproducing explosive charges, said meansincluding valve mechanisms, which are simultaneouslyoperated, theconnections being so arranged that the amount of movement of one valvecan be considerably varied with respect to the amount of movement of theother valve.

Another and important object is to provide novel, simple and effectivemeans for thoroughly vaporizing the liquid. hydrocarbonor other motivefluid prior to its passage to the engine or motor, said meanseliminating to a material degree the danger of flood ing the carburetor.

The preferred embodiment of the invention is illustrated in theaccompanying drawings, wherein Figure 1 is a side elevation ofthecarbureter. Fig. '2 is a top plan view thereof. Fig. 3 is ahorizontal sectional view on the line 33 of Fig. 1. Fig. 4 is a verticalsectional view on the line 44 of Fig. 2. Fig. 5 is a vertical sectionalview at right angles to Fig. 4, and showing the throttle valve inclosed. position. Figs. 6 and 7 are plan views of washers employed forvarying the size of the air inlet to the carbureter. Fig. 8 is a detailsectional view on the line 88 of Fig. 2.

Similar reference numerals designate corresponding parts in all thefigures of the drawings.

In the embodiment illustrated, a cylindrical casing 8 is employed havinga bottom 9 and a top 10, the latter being preferably detachable andbeing threaded into the upper portion of the cylindrical walls. Thiscasing is provided in one side with an outlet 11 for the assage ofexplosive charges, and this outlet 1s adapted to be connected in anysuitable manner to the intake of an explosive en ine or motor, as willbe evident to those sk' led in the art.

The bottom 9 is provided with a depending boss 12 and an upstanding rim13. Through this boss and rim extends the air inlet 14, which thuscommunicates directly with the vaporizing and mixing chamber 15 of thecasing 8. The size of the inlet may be varied by employing any one of aseries of washers 16 which have openings of different diameters, saidwashers being fitted against the lower end of the boss 12 and held inplace by a cull 17 that fits over the bpss and is se cured by a setscrew 18.. This cuff has aninwardly extending annular flange 19 on whichthe said washers rest. The said inlet 14 is normally closed by anupwardly movable cap 20 that is located'over the rim 13, and has acircular rim .21 'slidably depending within said rim 13. The rim 21 hasan annular series of openings 22, which, when the cap is in itslowermost position, are covered by the rim 13, but these openings 22will uncover when the cap is elevated a suflicient distance within thechamber 15, as will be evident. The cap 20 also carries a cylindricalscreen 23 that is fastened to the margins of said cap, and is thusvertically movable with it.

A supply conduit 24 for liquid hydrocarbon or other motive fluid is conled, as shown at 25 to a nipple 26, this nipp e being connectedto avalve casing 27 formed upon one side of the casing 8. A nozzle 28,leading from the valve casing 27 into the chamber 15 of the casing'S,has a downturned terminal 29 on which is threaded a cap 30. This cap isprovided with a central valve seat 31,- and an upwardly opening 'p'luvalve 32 located in the downturned termina 29, normally rests on theseat, and thus closes the nozzle. The valve 32 is provided with adepending stem 33 which carries at its lower end an abutment disk 34hori zontally' arranged and located in spaced relation to but in thepath of movement of the cap 20. Thus upon the upward move'- ment of saidcap, it will strike the disk 34:, and elevating the same, will open thevalve 32. This opening movement occurs just prior to the uncovering ofthe openings 22.

The so ply of motive fluid to the nozzle 28 is controlled by projectsthrough a suitable stuliing box'36 formed on the valve casing 27 and hasan angular upper end 37. An actuating wheel 38 is detachably mounted onsaid angular end. Between the wheel or on 38 and the stufiing box 36 islocated a col ar 39 which is rotatable upon the valve stem, but isnormally held against movement and in adjusted position by a set screw40. Tins collar carries a curved crank arm 41, which a needle valve 35which i as shown in Fig. 2, is preferably provided with a scale. Theoutlet 11 for the ex losive charges is controlled by a rotatable t ottlevalve 42 movable across the same and carried by an arm 43 attached tothe lower end of a vertical shaft 44. This shaft is journaled in a boss45 formed centrally u on the removable top 10 of the casing.

thereto a crank arm 46 normally held against movement with res iect totheshaft by .a set screw 47. A lin 48, adjustably and pivotallyconnected to the crank arm' 46 by a suitable bolt or fastener .49, ispivoted at its other end by a clamping screw 50 to a yoke 51. This yokeis slidable upon the crank arm 41, and is held in diif'erent posi tionsby the set screw 50, which engages the same. The crank arm 46 also hasanother arm 52, to which a suitable operating device, as 53, ispivotally connected. The arm 52 o erates between a pair of upstandingshou ders 54 formed at the ends of a curved strip 55 that is located onthe cover or top'10. This strip is connected at one end, and as shown at56 to a'split'collar 57 surrounding the boss 45 and clamped thereto by'a suitable screw or bolt 58. In one of the shoulders 54 is threaded anadjustable stop screw 59.

The operation of the structure is substantially as follows. Thecontrolling valve is first adjusted with respect to, the

throttle valve by loosening the set screw 40, and turning said valve 35by means ofthe wheel 38, after which the screw 40 is set and the wheelremoved. It will thus be evident that upon the opening movement of thethrottle valve, the controlling valve 35 will be opened, and in likemanner when one is closed, the other will also be closed. The amount ofmovement of the valve 35 can be changed with res ect to the amount ofmovement of the t rottle valve 42 by shift]- ing the yoke 51 toward andfrom the axis of rotation of the valve 35. With this constructiontherefore, when the valves are opened andthe en ine is in operation,upon every intake stro e the air will rush in through the openin 14,raise the ca 20 and this cap striking t e disk 34, wil 'elevate and openthe valve 32, as already explained.

When said valve opens, the liquid hydrocarbon or other motive fluid willfiow downwardly over-the disk 42, over the ca 2,0 and on to the screenwhere it will fil the meshes 'of the same. The rush of air through thisscreen will cause the liquid to be va orized and it will thus be carriedinto t e engine. Thus it will be evident that ver simple mechanism isprovided for eflectivey carry n out the objects of the invention as setor'th in the preliminary portion of the specification.

From the foregoing, it is thought that the he upper end of the shaft hasadjustably secured Letters Patent, is

'by to t construction, operation and many advan may be resorted towithout de arting from the spirit or sacrificing any 0 the advantages ofthe invention.

Having thus fully described my invention, What I claim as new,

1.- In a carbureter, the combination with a casing having a top rovidedwith a boss and having a charge out et in one side, of a shaft journaledin the boss and having an arm inside the casing provided with a throttlevalve that operates across the outlet, a crank arm secured to the outerend of the shaft, a split collar. surroundin and clamped upon the boss,s aced shoufld arm, and a stop for said arm adjustably mounted on one ofthe shoulders.

g 2. In a carbureter, the combination with a substantially uprightcasing having an air in and desireto secure by ers connected to the col-'lar an located on opposite sides of the crank let in its bottom and acharge outlet in one side, of a motive fluid conduit extending intothe'casing, a needle valve (mntrolling said conduit and rojecting abovethe same, a crank arm ad ustably mounted on the proecting portion of theneedle valvejan up- Standing boss carried by the top of the easing, ashaft journaled in theboss and having an exposed crank arm, a linkpivoted to one 1 crank arm and adjustable on the other toward and fromits axis of movement, an arm carried by one --end of the shaft, athrottle valve secured to the arm and movable across the other outlet,and relatively adjustable stops secured to the boss and located onopposite sides and in the path of movement of the crank arm carriedbythe shaft.

3. In a carbureter, the combination with a casing having an air inletand a rim extending into the casing and surrounding the inlet, of amovable imperforate cap covering the upper end of the rim, a screensuspended from the cap and surrounding the rim, andmeans for supplyingmotive fluid to the screen.

4. In a carbureter, the combination with a casing having an air inletanda rim extend ing into the casing and surrounding the 1nlet, of a movableimperforate cap covering the upper end of the rim. another rim suspendedfrom the cap and slidably associated withthe first mentioned rim, oneof, said rims having an opening that is covered and uncovered by theother on their relative movement, a

screen suspended from the cap and surrounding the rims, and meansactuated by the cap for supplying motive fluid thereto and there-' escreen. 1

5. In a carbureter, the combination with a .from on to the screen.

6. In a carbureter, the combination with a casing having an air inlet,of a movable imof the cap.

perforate cap located'over the-inlet, a n1ov-- able screen surroundingthe inlet and associated with the cap, and means operated by the cap fordirecting motive fluid thereagainst, said fluid passing from the cap onto the screen;

7. In-a carbureter, the combination with a casing having a bottom inlet,of a vertically movable imperforate cap located over the inlet, a screensuspended from the cap and surrounding the inlet, a motive fluid conduithaving a downwardly extending discharge nozzle located over the cap, anupwardly opening valve arranged in the discharge nozzle, and an abutmentdisk connected to the valve and disposed in the path of movement 8. In acarbureter, the combination with a casing having an air inlet and a rimsurrounding-the inlet, of a movable cap located over the inlet andhaving a rim 'slidably overlapping the first mentioned T1111, one ofsaid rims being provided with openings exposed on the movement ol'thecap, means for spraying motive fluid on the cap, and a valve controllingthe spraying means and having a stem located in the patlrof movement ofand operated by the cap. v

9. In a carbureter,thecomhination with a casing having a bottom airinletand an up standing rim surrounding the same, of a cap located over theinlet and havinga depending flange or rim slidably associated with thefirst mentioned rim, and having openings which are uncovered when thecap is raised, a motive fluid supply conduit having a downturned nozzlearranged above the ca a valve controlling the nozzle, and an a utmentdisk secured to thevalve and located inthe path of movementofthe cap.

10. In a carbureter, the combination With a casing having a bottom airinlet and an upstanding rim surrounding thesame, of. a cap covering theinlet and rim, another rim depending from the cap, one of the rimshaving openings that are uncovered upon the elevation of the cap, ascreen depending from the capand surrounding the rim, a motive fluidconduit having a downturned nozzle located above the cap, and a 'valvecontrolling the nozzle and having an actuating portiondisposed in thepath of movement of the cap.

11. In a carbureter, the combination with a casing having an air inletand an outlet for the" explosive charges, of means for introdudingmotive fluid into the casing, said casing having an outstanding bossthat surrounds the air -inlet, a and secured .to the boss, and washershaving openings of different diameters, any oneof said Washersbeingarranged to be clamped between the cull and the boss to vary the size ofthe inlet opening.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two Witnesses. FLOYD WM; DE TRAY.

Witnesses:

J. J. WARREN, R. H. HOLCOMB.

